Manufacturing Process of Nanostructured Alumina Coatings by Suspension Plasma Spraying

This paper describes the formation process of nanostructured alumina coatings and the injection system obtained by suspension plasma spraying (SPS), an alternative to the atmospheric plasma spraying technique in which the material feedstock is a suspension of the nanopowder to be sprayed. The nanosc...

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Veröffentlicht in:Journal of thermal spray technology 2009-06, Vol.18 (2), p.272-283
Hauptverfasser: Qiu, Changjun, Chen, Yong
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description This paper describes the formation process of nanostructured alumina coatings and the injection system obtained by suspension plasma spraying (SPS), an alternative to the atmospheric plasma spraying technique in which the material feedstock is a suspension of the nanopowder to be sprayed. The nanoscale alumina powders ( d  ≈ 20 nm) were dispersed in distilled water or ethanol and injected by a peristaltic pump into plasma under atmospheric conditions. Optical microscopy (OM), scanning electron microscopy (SEM), and x-ray diffraction (XRD) analyses were performed to study the microstructure of the nanostructured alumina coatings. The results showed that the nanoscale alumina powders in suspension were very easily adsorbed at the inner surface of injection, which caused the needle to jam. The rotation of the pump had a great effect on the suspension injection in the plasma. The very small resistance of the thin plasma boundary layer near the substrate can drastically decrease the impacting velocity of nanosize droplets. The concentration of suspension also has a significant influence on the distribution of the size of the droplet, the enthalpy needed for spraying suspension, and the roughness of the coating surface. The phase structures of alumina suspension coatings strongly depend on the plasma spraying distance. A significant nanostructured fine alumina coating was obtained in some areas when ethanol was used as a solvent. The microstructures of the coating were observed as a function of the solvent and the spraying parameters.
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The nanoscale alumina powders ( d  ≈ 20 nm) were dispersed in distilled water or ethanol and injected by a peristaltic pump into plasma under atmospheric conditions. Optical microscopy (OM), scanning electron microscopy (SEM), and x-ray diffraction (XRD) analyses were performed to study the microstructure of the nanostructured alumina coatings. The results showed that the nanoscale alumina powders in suspension were very easily adsorbed at the inner surface of injection, which caused the needle to jam. The rotation of the pump had a great effect on the suspension injection in the plasma. The very small resistance of the thin plasma boundary layer near the substrate can drastically decrease the impacting velocity of nanosize droplets. The concentration of suspension also has a significant influence on the distribution of the size of the droplet, the enthalpy needed for spraying suspension, and the roughness of the coating surface. 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Metallurgy ; Nanocomposites ; Nanomaterials ; Nanostructure ; Nonmetallic coatings ; Peer Reviewed ; Plasma spraying ; Processes ; Production techniques ; Solvents ; Spraying ; Surface treatment ; Surfaces and Interfaces ; Thin Films ; Tribology ; X-ray diffraction</subject><ispartof>Journal of thermal spray technology, 2009-06, Vol.18 (2), p.272-283</ispartof><rights>ASM International 2009</rights><rights>2015 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c408t-3f660f39c22f1bdefb8648b5c618c390430aca581781360686e6a450a93c02c63</citedby><cites>FETCH-LOGICAL-c408t-3f660f39c22f1bdefb8648b5c618c390430aca581781360686e6a450a93c02c63</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://link.springer.com/content/pdf/10.1007/s11666-009-9295-4$$EPDF$$P50$$Gspringer$$H</linktopdf><linktohtml>$$Uhttps://link.springer.com/10.1007/s11666-009-9295-4$$EHTML$$P50$$Gspringer$$H</linktohtml><link.rule.ids>309,310,314,780,784,789,790,23930,23931,25140,27924,27925,41488,42557,51319</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&amp;idt=21742913$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Qiu, Changjun</creatorcontrib><creatorcontrib>Chen, Yong</creatorcontrib><title>Manufacturing Process of Nanostructured Alumina Coatings by Suspension Plasma Spraying</title><title>Journal of thermal spray technology</title><addtitle>J Therm Spray Tech</addtitle><description>This paper describes the formation process of nanostructured alumina coatings and the injection system obtained by suspension plasma spraying (SPS), an alternative to the atmospheric plasma spraying technique in which the material feedstock is a suspension of the nanopowder to be sprayed. 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Metallurgy</subject><subject>Nanocomposites</subject><subject>Nanomaterials</subject><subject>Nanostructure</subject><subject>Nonmetallic coatings</subject><subject>Peer Reviewed</subject><subject>Plasma spraying</subject><subject>Processes</subject><subject>Production techniques</subject><subject>Solvents</subject><subject>Spraying</subject><subject>Surface treatment</subject><subject>Surfaces and Interfaces</subject><subject>Thin Films</subject><subject>Tribology</subject><subject>X-ray diffraction</subject><issn>1059-9630</issn><issn>1544-1016</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2009</creationdate><recordtype>article</recordtype><sourceid>AFKRA</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><recordid>eNp9kU1rFTEUhgdRsFZ_gLsgqKuxJ583WZZL_YDaFqpuw7lpIlPmJmPOzOL--2a4RUHQVQLvk5dz8nTdaw4fOMDmjDg3xvQArnfC6V496U64VqrnwM3TdgfdEiPhefeC6B4AtBH6pPvxFfOSMMxLHfJPdlNLiESsJHaFudBclzWKd-x8XPZDRrYtODeS2O7AbheaYqahZHYzIu2R3U4VDy1-2T1LOFJ89Xiedt8_Xnzbfu4vrz992Z5f9kGBnXuZjIEkXRAi8d1dTDtrlN3pYLgN0oGSgAG15RvLpQFjTTSoNKCTAUQw8rR7f-ydavm1RJr9fqAQxxFzLAt5x5UxygnVyHf_JaUyXFstGvjmL_C-LDW3LbzdrJ_GlWwQP0KhFqIak5_qsMd68Bz8KsQfhfgmxK9C_DrB28dipIBjqpjDQL8fCr5RwvG1Wxw5mlYnsf4Z4N_lD7sdmeE</recordid><startdate>20090601</startdate><enddate>20090601</enddate><creator>Qiu, Changjun</creator><creator>Chen, Yong</creator><general>Springer US</general><general>Springer</general><general>Springer Nature B.V</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>8FE</scope><scope>8FG</scope><scope>ABJCF</scope><scope>AFKRA</scope><scope>BENPR</scope><scope>BGLVJ</scope><scope>BHPHI</scope><scope>BKSAR</scope><scope>CCPQU</scope><scope>D1I</scope><scope>DWQXO</scope><scope>HCIFZ</scope><scope>KB.</scope><scope>PCBAR</scope><scope>PDBOC</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>7QF</scope><scope>7SR</scope><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope><scope>7QQ</scope></search><sort><creationdate>20090601</creationdate><title>Manufacturing Process of Nanostructured Alumina Coatings by Suspension Plasma Spraying</title><author>Qiu, Changjun ; Chen, Yong</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c408t-3f660f39c22f1bdefb8648b5c618c390430aca581781360686e6a450a93c02c63</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2009</creationdate><topic>Aluminum oxide</topic><topic>Analytical Chemistry</topic><topic>Applied sciences</topic><topic>Boundary layers</topic><topic>Characterization and Evaluation of Materials</topic><topic>Chemistry and Materials Science</topic><topic>Coatings</topic><topic>Corrosion and Coatings</topic><topic>Distilled water</topic><topic>Droplets</topic><topic>Ethanol</topic><topic>Ethyl alcohol</topic><topic>Exact sciences and technology</topic><topic>Injection</topic><topic>Light microscopy</topic><topic>Machines</topic><topic>Manufacturing</topic><topic>Manufacturing industry</topic><topic>Materials Science</topic><topic>Metals. Metallurgy</topic><topic>Nanocomposites</topic><topic>Nanomaterials</topic><topic>Nanostructure</topic><topic>Nonmetallic coatings</topic><topic>Peer Reviewed</topic><topic>Plasma spraying</topic><topic>Processes</topic><topic>Production techniques</topic><topic>Solvents</topic><topic>Spraying</topic><topic>Surface treatment</topic><topic>Surfaces and Interfaces</topic><topic>Thin Films</topic><topic>Tribology</topic><topic>X-ray diffraction</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Qiu, Changjun</creatorcontrib><creatorcontrib>Chen, Yong</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>ProQuest SciTech Collection</collection><collection>ProQuest Technology Collection</collection><collection>Materials Science &amp; Engineering Collection</collection><collection>ProQuest Central UK/Ireland</collection><collection>ProQuest Central</collection><collection>Technology Collection</collection><collection>Natural Science Collection</collection><collection>Earth, Atmospheric &amp; Aquatic Science Collection</collection><collection>ProQuest One Community College</collection><collection>ProQuest Materials Science Collection</collection><collection>ProQuest Central Korea</collection><collection>SciTech Premium Collection</collection><collection>Materials Science Database</collection><collection>Earth, Atmospheric &amp; Aquatic Science Database</collection><collection>Materials Science Collection</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>Aluminium Industry Abstracts</collection><collection>Engineered Materials Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><collection>Ceramic Abstracts</collection><jtitle>Journal of thermal spray technology</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Qiu, Changjun</au><au>Chen, Yong</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Manufacturing Process of Nanostructured Alumina Coatings by Suspension Plasma Spraying</atitle><jtitle>Journal of thermal spray technology</jtitle><stitle>J Therm Spray Tech</stitle><date>2009-06-01</date><risdate>2009</risdate><volume>18</volume><issue>2</issue><spage>272</spage><epage>283</epage><pages>272-283</pages><issn>1059-9630</issn><eissn>1544-1016</eissn><coden>JTTEE5</coden><abstract>This paper describes the formation process of nanostructured alumina coatings and the injection system obtained by suspension plasma spraying (SPS), an alternative to the atmospheric plasma spraying technique in which the material feedstock is a suspension of the nanopowder to be sprayed. The nanoscale alumina powders ( d  ≈ 20 nm) were dispersed in distilled water or ethanol and injected by a peristaltic pump into plasma under atmospheric conditions. Optical microscopy (OM), scanning electron microscopy (SEM), and x-ray diffraction (XRD) analyses were performed to study the microstructure of the nanostructured alumina coatings. The results showed that the nanoscale alumina powders in suspension were very easily adsorbed at the inner surface of injection, which caused the needle to jam. The rotation of the pump had a great effect on the suspension injection in the plasma. The very small resistance of the thin plasma boundary layer near the substrate can drastically decrease the impacting velocity of nanosize droplets. The concentration of suspension also has a significant influence on the distribution of the size of the droplet, the enthalpy needed for spraying suspension, and the roughness of the coating surface. The phase structures of alumina suspension coatings strongly depend on the plasma spraying distance. A significant nanostructured fine alumina coating was obtained in some areas when ethanol was used as a solvent. The microstructures of the coating were observed as a function of the solvent and the spraying parameters.</abstract><cop>Boston</cop><pub>Springer US</pub><doi>10.1007/s11666-009-9295-4</doi><tpages>12</tpages></addata></record>
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subjects Aluminum oxide
Analytical Chemistry
Applied sciences
Boundary layers
Characterization and Evaluation of Materials
Chemistry and Materials Science
Coatings
Corrosion and Coatings
Distilled water
Droplets
Ethanol
Ethyl alcohol
Exact sciences and technology
Injection
Light microscopy
Machines
Manufacturing
Manufacturing industry
Materials Science
Metals. Metallurgy
Nanocomposites
Nanomaterials
Nanostructure
Nonmetallic coatings
Peer Reviewed
Plasma spraying
Processes
Production techniques
Solvents
Spraying
Surface treatment
Surfaces and Interfaces
Thin Films
Tribology
X-ray diffraction
title Manufacturing Process of Nanostructured Alumina Coatings by Suspension Plasma Spraying
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